User Add Icon
Max Mini Icons
Commercial usage: Not allowed
Button Add Icon
Plastic Mini Icons
Database Add Icon
Folder Add Icon
Folder Window Icon
Sabre Snow Black Icons
Jeans Windows Icon
Jeans Folder Icons
Delicious Icon
Vista Social Icons
Commercial usage: Allowed
Digg Icon
Facebook Icon
RSS Icon
Technorati Icon
Twitter Icon
Vimeo Icon
Comment Add Icon
Pretty Office VIII Icons
File Add Icon
32 Soft Media Icons
Social Windows Box Icon
Social Bookmarks Icon Set
Social Windows Button Icon
New Window Icon
Minicons Graphite Icons
Album Add Icon
Bwpx.icns Icons
Application Add Icon
Cart Add Icon
Document Add Icon
Modifier Add Icon
Package Add Icon
Photo Add Icon
Calendar Add Icon
Marmalade Icons